In the Linux kernel, the following vulnerability has been resolved: LoongArch: Add spectre boundry for syscall dispatch table The LoongArch syscall number is directly controlled by userspace, but does not have a array_index_nospec() boundry to prevent access past the syscall function pointer tables.

photon_os PHSA-2026-5.0-91-0904: Unknown PhotonOS Security Updated

photon_os PHSA-2026-5.0-92-0926: Unknown PhotonOS Security Updated

An update of the linux package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - LoongArch: Add spectre boundry for syscall dispatch table The LoongArch syscall number is directly     controlled by userspace, but does not have a array_index_nospec() boundry to prevent access past the     syscall function pointer tables. (CVE-2026-45993)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
329326	Photon OS 5.0: Linux PHSA-2026-5.0-0926	Nessus	PhotonOS Local Security Checks	high
323389	Photon OS 5.0: Linux PHSA-2026-5.0-0904	Nessus	PhotonOS Local Security Checks	high
317179	Linux Distros Unpatched Vulnerability : CVE-2026-45993	Nessus	Misc.	medium

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CVE-2026-45993

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